Global Patent Index - EP 3162788 A1

EP 3162788 A1 20170503 - METHOD FOR PURIFYING FERULIC ACID AND/OR SALTS THEREOF

Title (en)

METHOD FOR PURIFYING FERULIC ACID AND/OR SALTS THEREOF

Title (de)

VERFAHREN ZUR REINIGUNG VON FERULICSÄURE UND/ODER SALZEN DAVON

Title (fr)

PROCÉDÉ DE PURIFICATION D'ACIDE FÉRULIQUE ET/OU DE SES SELS

Publication

EP 3162788 A1 20170503 (EN)

Application

EP 15750912 A 20150723

Priority

MX 2015000109 W 20150723

Abstract (en)

Methods to purify ferulic acid and/or salts thereof, both in solid state as in solution, said methods include: dissolve the ferulic acid, with a selective organic solvent, recover and isolate the solution from the insoluble impurities with filters; recover the organic solvent evaporating the solution; mix the concentrated extract of ferulic acid with water to pre-crystallize the hydrosoluble impurities; evaporate the mixture to remove the remains of the organic solvent; concentrate the mixture free of solvent in an evaporator; cool the mixture down to 40 °C; let the concentrated mixture set for 1 h, to then isolate by sedimentation the water-insoluble impurities; re-heat the mixture free of impurities to 70 °C; purify the mixture through a synthetic resin, transfer the purified mixture to a crystallizing container to crystallize the ferulic acid; remove the mother liquor of crystallization of the precipitate of ferulic acid; dry the ferulic acid.

IPC 8 full level

C07C 59/64 (2006.01); C07C 51/48 (2006.01)

CPC (source: EP US)

C07C 51/42 (2013.01 - EP US); C07C 51/43 (2013.01 - EP US); C07C 51/47 (2013.01 - EP US); C07C 51/48 (2013.01 - EP US)

C-Set (source: EP US)

  1. C07C 51/43 + C07C 59/64
  2. C07C 51/47 + C07C 59/64
  3. C07C 51/48 + C07C 59/64
  4. C07C 51/42 + C07C 59/64

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3162788 A1 20170503; EP 3162788 A4 20180228; EP 3162788 B1 20200219; CA 2902089 A1 20170124; CN 107074718 A 20170818; ES 2791295 T3 20201103; JP 2018522065 A 20180809; MX 2015011381 A 20170320; US 2017158595 A1 20170608; US 9732024 B2 20170815; WO 2017014621 A1 20170126

DOCDB simple family (application)

EP 15750912 A 20150723; CA 2902089 A 20150724; CN 201580000325 A 20150723; ES 15750912 T 20150723; JP 2018523730 A 20150723; MX 2015000109 W 20150723; MX 2015011381 A 20150723; US 201514771668 A 20150724